27 lines
902 B
Rust
27 lines
902 B
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(associated_type_defaults)]
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use std::ops::{Index};
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trait Hierarchy {
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type Value;
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type ChildKey;
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type Children = Index<Self::ChildKey, Output=Hierarchy>;
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//~^ ERROR: the value of the associated type `ChildKey`
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//~^^ ERROR: the value of the associated type `Children`
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//~^^^ ERROR: the value of the associated type `Value`
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fn data(&self) -> Option<(Self::Value, Self::Children)>;
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}
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fn main() {}
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